mmotm 2014-08-29-15-15 uploaded

The mm-of-the-moment snapshot 2014-08-29-15-15 has been uploaded to

http://www.ozlabs.org/~akpm/mmotm/

mmotm-readme.txt says

README for mm-of-the-moment:

http://www.ozlabs.org/~akpm/mmotm/

This is a snapshot of my -mm patch queue. Uploaded at random hopefully more than once a week.

You will need quilt to apply these patches to the latest Linus release (3.x or 3.x-rcY). The series file is in broken-out.tar.gz and is duplicated in
http://ozlabs.org/~akpm/mmotm/series

The file broken-out.tar.gz contains two datestamp files: .DATE and .DATE-yyyy-mm-dd-hh-mm-ss. Both contain the string yyyy-mm-dd-hh-mm-ss, followed by the base kernel version against which this patch series is to be applied.

This tree is partially included in linux-next. To see which patches are included in linux-next, consult the `series' file. Only the patches within the #NEXT_PATCHES_START/#NEXT_PATCHES_END markers are included in linux-next.

A git tree which contains the memory management portion of this tree is maintained at git://git.kernel.org/pub/scm/linux/kernel/git/mhocko/mm.git
by Michal Hocko. It contains the patches which are between the "#NEXT_PATCHES_START mm" and "#NEXT_PATCHES_END" markers, from the series file, http://www.ozlabs.org/~akpm/mmotm/series.

A full copy of the full kernel tree with the linux-next and mmotm patches already applied is available through git within an hour of the mmotm release. Individual mmotm releases are tagged. The master branch always points to the latest release, so it's constantly rebasing.

http://git.cmpxchg.org/?p=linux-mmotm.git;a=summary

To develop on top of mmotm git:

  $ git remote add mmotm git://git.kernel.org/pub/scm/linux/kernel/git/mhocko/mm.git
  $ git remote update mmotm
  $ git checkout -b topic mmotm/master
  <make changes, commit>
  $ git send-email mmotm/master.. [...]

To rebase a branch with older patches to a new mmotm release:

  $ git remote update mmotm
  $ git rebase --onto mmotm/master <topic base> topic

The directory http://www.ozlabs.org/~akpm/mmots/ (mm-of-the-second) contains daily snapshots of the -mm tree. It is updated more frequently than mmotm, and is untested.

A git copy of this tree is available at

http://git.cmpxchg.org/?p=linux-mmots.git;a=summary

and use of this tree is similar to
http://git.cmpxchg.org/?p=linux-mmotm.git, described above.

This mmotm tree contains the following patches against 3.17-rc2:
(patches marked "*" will be included in linux-next)

origin.patch
i-need-old-gcc.patch
arch-alpha-kernel-systblss-remove-debug-check.patch maintainers-akpm-maintenance.patch
* checkpatch-relax-check-for-length-of-git-commit-ids.patch
* resource-fix-the-case-of-null-pointer-access.patch
* memblock-memhotplug-fix-wrong-type-in-memblock_find_in_range_node.patch
* mm-actually-clear-pmd_numa-before-invalidating.patch
* lib-turn-config_stacktrace-into-an-actual-option.patch
* zram-fix-incorrectly-stat-with-failed_reads.patch
* mm-zpool-use-prefixed-module-loading.patch
* hugetlb_cgroup-use-lockdep_assert_held-rather-than-spin_is_locked.patch
* x86mm-fix-pte_special-versus-pte_numa.patch
* kexec-create-a-new-config-option-config_kexec_file-for-new-syscall.patch
* kexec-remove-config_kexec-dependency-on-crypto.patch
* xattr-fix-check-for-simultaneous-glibc-header-inclusion.patch
* rtc-s5m-re-add-support-for-devices-without-irq-specified.patch
* x86-purgatory-use-approprate-m64-32-build-flag-for-arch-x86-purgatory.patch
* ocfs2-do-not-write-error-flag-to-user-structure-we-cannot-copy-from-to.patch
* ocfs2-o2net-dont-shutdown-connection-when-idle-timeout.patch
* ocfs2-o2net-set-tcp-user-timeout-to-max-value.patch
* ocfs2-quorum-add-a-log-for-node-not-fenced.patch
* tools-selftests-fixing-build-issue-with-make-kselftests-target.patch
* flush_icache_range-export-symbol-to-fix-build-errors.patch
* add-arm-description-to-documentation-kdump-kdumptxt.patch
* purgatory-add-clean-up-for-purgatory-directory.patch
* mem-hotplug-let-memblock-skip-the-hotpluggable-memory-regions-in-__next_mem_range.patch
* mem-hotplug-let-memblock-skip-the-hotpluggable-memory-regions-in-__next_mem_range-fix.patch
* fix-faulty-logic-in-the-case-of-recursive-printk.patch
* mm-slab_commonc-suppress-warning.patch
* mm-cma-adjust-address-limit-to-avoid-hitting-low-high-memory-boundary.patch
* arm-mm-dont-limit-default-cma-region-only-to-low-memory.patch
* eventpoll-fix-uninitialized-variable-in-epoll_ctl.patch
* sh-get_user_pages_fast-must-flush-cache-the-way.patch
* checkpatch-allow-commit-descriptions-on-separate-line-from-commit-id.patch
* x86mem-hotplug-pass-sync_global_pgds-a-correct-argument-in-remove_pagetable.patch
* x86mem-hotplug-modify-pgd-entry-when-removing-memory.patch
* x86-numa-setup_node_data-drop-dead-code-and-rename-function.patch
* mem-hotplug-fix-boot-failed-in-case-all-the-nodes-are-hotpluggable.patch
* mem-hotplug-fix-boot-failed-in-case-all-the-nodes-are-hotpluggable-checkpatch-fixes.patch
* mn10300-use-kbuild-logic-to-include-asm-generic-sectionsh.patch
* cris-use-kbuild-logic-to-include-asm-generic-sectionsh.patch
* fs-cifs-remove-obsolete-__constant.patch
* fs-cifs-filec-replace-countsize-kzalloc-by-kcalloc.patch
* fs-cifs-smb2filec-replace-countsize-kzalloc-by-kcalloc.patch
* efi-bgrt-add-error-handling-inform-the-user-when-ignoring-the-bgrt.patch
* kernel-posix-timersc-code-clean-up.patch
* kernel-posix-timersc-code-clean-up-checkpatch-fixes.patch
* input-route-kbd-leds-through-the-generic-leds-layer.patch
* input-route-kbd-leds-through-the-generic-leds-layer-fix.patch
* m32r-use-kbuild-logic-to-include-asm-generic-sectionsh.patch
* score-use-kbuild-logic-to-include-asm-generic-sectionsh.patch
* fs-ext4-fsyncc-generic_file_fsync-call-based-on-barrier-flag.patch
* fs-ocfs2-stack_userc-fix-typo-in-ocfs2_control_release.patch
* o2dlm-fix-null-pointer-dereference-in-o2dlm_blocking_ast_wrapper.patch
* o2dlm-fix-null-pointer-dereference-in-o2dlm_blocking_ast_wrapper-checkpatch-fixes.patch
* ocfs2-free-inode-when-i_count-becomes-zero.patch
* ocfs2-call-ocfs2_journal_access_di-before-ocfs2_journal_dirty-in-ocfs2_write_end_nolock.patch
* ocfs2-avoid-access-invalid-address-when-read-o2dlm-debug-messages.patch
* ocfs2-dlm-fix-race-between-dispatched_work-and-dlm_lockres_grab_inflight_worker.patch
* ocfs2-reflink-fix-slow-unlink-for-refcounted-file.patch
* ocfs2-fix-journal-commit-deadlock.patch
* ocfs2-fix-deadlock-between-o2hb-thread-and-o2net_wq.patch
* bio-integrity-remove-the-needless-fail-handle-of-bip_slab-creating.patch
* block-restore-proc-partitions-to-not-display-non-partitionable-removable-devices.patch
* softlockup-make-detector-be-aware-of-task-switch-of-processes-hogging-cpu.patch
* softlockup-make-detector-be-aware-of-task-switch-of-processes-hogging-cpu-fix.patch mm.patch
* mm-slab_common-move-kmem_cache-definition-to-internal-header.patch
* mm-slab_common-move-kmem_cache-definition-to-internal-header-fix.patch
* mm-slb-always-track-caller-in-kmalloc_node_track_caller.patch
* mm-slab-move-cache_flusharray-out-of-unlikelytext-section.patch
* mm-slab-noinline-__ac_put_obj.patch
* mm-slab-factor-out-unlikely-part-of-cache_free_alien.patch
* slub-disable-tracing-and-failslab-for-merged-slabs.patch
* fix-checkpatch-errors-for-mm-mmapc.patch
* memory-hotplug-add-sysfs-zones_online_to-attribute.patch
* memory-hotplug-add-sysfs-zones_online_to-attribute-fix.patch
* memory-hotplug-add-sysfs-zones_online_to-attribute-fix-2.patch
* memory-hotplug-add-sysfs-zones_online_to-attribute-fix-3.patch
* memory-hotplug-add-sysfs-zones_online_to-attribute-fix-4.patch
* mm-remove-misleading-arch_uses_numa_prot_none.patch
* lib-genallocc-add-power-aligned-algorithm.patch
* lib-genallocc-add-genpool-range-check-function.patch
* common-dma-mapping-introduce-common-remapping-functions.patch
* common-dma-mapping-introduce-common-remapping-functions-fix.patch
* common-dma-mapping-introduce-common-remapping-functions-fix-2.patch
* arm-use-genalloc-for-the-atomic-pool.patch
* arm64-add-atomic-pool-for-non-coherent-and-cma-allocations.patch
* mm-page_alloc-determine-migratetype-only-once.patch
* vfs-make-guard_bh_eod-more-generic.patch
* vfs-guard-end-of-device-for-mpage-interface.patch
* block_dev-implement-readpages-to-optimize-sequential-read.patch
* mm-thp-dont-hold-mmap_sem-in-khugepaged-when-allocating-thp.patch
* mm-compaction-defer-each-zone-individually-instead-of-preferred-zone.patch
* mm-compaction-defer-each-zone-individually-instead-of-preferred-zone-fix.patch
* mm-compaction-do-not-count-compact_stall-if-all-zones-skipped-compaction.patch
* mm-compaction-do-not-recheck-suitable_migration_target-under-lock.patch
* mm-compaction-move-pageblock-checks-up-from-isolate_migratepages_range.patch
* mm-compaction-reduce-zone-checking-frequency-in-the-migration-scanner.patch
* mm-compaction-khugepaged-should-not-give-up-due-to-need_resched.patch
* mm-compaction-khugepaged-should-not-give-up-due-to-need_resched-fix.patch
* mm-compaction-periodically-drop-lock-and-restore-irqs-in-scanners.patch
* mm-compaction-skip-rechecks-when-lock-was-already-held.patch
* mm-compaction-remember-position-within-pageblock-in-free-pages-scanner.patch
* mm-compaction-skip-buddy-pages-by-their-order-in-the-migrate-scanner.patch
* mm-rename-allocflags_to_migratetype-for-clarity.patch
* mm-compaction-pass-gfp-mask-to-compact_control.patch
* mm-introduce-check_data_rlimit-helper-v2.patch
* mm-use-may_adjust_brk-helper.patch
* prctl-pr_set_mm-factor-out-mmap_sem-when-update-mm-exe_file.patch
* prctl-pr_set_mm-introduce-pr_set_mm_map-operation-v3.patch
* prctl-pr_set_mm-introduce-pr_set_mm_map-operation-v4.patch
* prctl-pr_set_mm-introduce-pr_set_mm_map-operation-v3-fix.patch
* prctl-pr_set_mm-introduce-pr_set_mm_map-operation-v4-fix.patch
* prctl-pr_set_mm-introduce-pr_set_mm_map-operation-v4-fix-2.patch
* mm-remove-noisy-remainder-of-the-scan_unevictable-interface.patch
* mempolicy-change-alloc_pages_vma-to-use-mpol_cond_put.patch
* mempolicy-change-get_task_policy-to-return-default_policy-rather-than-null.patch
* mempolicy-sanitize-the-usage-of-get_task_policy.patch
* mempolicy-remove-the-task-arg-of-vma_policy_mof-and-simplify-it.patch
* mempolicy-introduce-__get_vma_policy-export-get_task_policy.patch
* mempolicy-fix-show_numa_map-vs-exec-do_set_mempolicy-race.patch
* mempolicy-kill-do_set_mempolicy-down_writemm-mmap_sem.patch
* mempolicy-unexport-get_vma_policy-and-remove-its-task-arg.patch
* mm-use-memblock_alloc_range.patch
* include-linux-migrateh-remove-migratepage-define.patch
* mm-balloon_compaction-ignore-anonymous-pages.patch
* mm-balloon_compaction-keep-ballooned-pages-away-from-normal-migration-path.patch
* mm-balloon_compaction-isolate-balloon-pages-without-lru_lock.patch
* selftests-vm-transhuge-stress-stress-test-for-memory-compaction.patch
* mm-introduce-common-page-state-for-ballooned-memory.patch
* mm-introduce-common-page-state-for-ballooned-memory-fix.patch
* mm-balloon_compaction-use-common-page-ballooning.patch
* mm-balloon_compaction-general-cleanup.patch
* mm-balloon_compaction-general-cleanup-fix.patch
* mm-balloon_compaction-general-cleanup-checkpatch-fixes.patch
* mm-use-seq_open_private-instead-of-seq_open.patch
* mm-use-__seq_open_private-instead-of-seq_open.patch
* introduce-dump_vma.patch
* introduce-dump_vma-fix.patch
* introduce-vm_bug_on_vma.patch
* convert-a-few-vm_bug_on-callers-to-vm_bug_on_vma.patch
* convert-a-few-vm_bug_on-callers-to-vm_bug_on_vma-checkpatch-fixes.patch
* mm-page_alloc-avoid-wakeup-kswapd-on-the-unintended-node.patch
* vmstat-on-demand-vmstat-workers-v8.patch
* vmstat-on-demand-vmstat-workers-v8-fix.patch
* vmstat-on-demand-vmstat-workers-v8-do-not-open-code-alloc_cpumask_var.patch
* vmstat-on-demand-vmstat-workers-v8-fix-2.patch
* mm-introduce-do_shared_fault-and-drop-do_fault-fix-fix.patch
* fs-mpagec-forgotten-write_sync-in-case-of-data-integrity-write.patch
* m68k-call-find_vma-with-the-mmap_sem-held-in-sys_cacheflush.patch
* m68k-call-find_vma-with-the-mmap_sem-held-in-sys_cacheflush-v2.patch
* zsmalloc-move-pages_allocated-to-zs_pool.patch
* zsmalloc-change-return-value-unit-of-zs_get_total_size_bytes.patch
* zram-zram-memory-size-limitation.patch
* zram-zram-memory-size-limitation-fix.patch
* zram-zram-memory-size-limitation-fix-fix.patch
* zram-zram-memory-size-limitation-fix-2.patch
* zram-report-maximum-used-memory.patch
* zram-add-num_discard_req-discarded-for-discard-stat.patch
* do_shared_fault-check-that-mmap_sem-is-held.patch
* alpha-use-kbuild-logic-to-include-asm-generic-sectionsh.patch
* include-kernelh-rewrite-min3-max3-and-clamp-using-min-and-max.patch
* include-kernelh-rewrite-min3-max3-and-clamp-using-min-and-max-fix.patch
* kernel-add-support-for-kernel-restart-handler-call-chain.patch
* power-restart-call-machine_restart-instead-of-arm_pm_restart.patch
* arm64-support-restart-through-restart-handler-call-chain.patch
* arm-support-restart-through-restart-handler-call-chain.patch
* watchdog-moxart-register-restart-handler-with-kernel-restart-handler.patch
* watchdog-alim7101-register-restart-handler-with-kernel-restart-handler.patch
* watchdog-sunxi-register-restart-handler-with-kernel-restart-handler.patch
* arm-arm64-unexport-restart-handlers.patch
* watchdog-s3c2410-add-restart-handler.patch
* clk-samsung-register-restart-handlers-for-s3c2412-and-s3c2443.patch
* clk-rockchip-add-restart-handler.patch
* kernel-async-fixed-coding-style-issues.patch
* acct-eliminate-compile-warning.patch
* acct-eliminate-compile-warning-fix.patch
* kernel-fix-for-checkpatch-errors-in-sys-file.patch
* drivers-misc-ti-st-st_corec-fix-null-dereference-on-protocol-type-check.patch
* printk-dont-bother-using-log_cpu_max_buf_shift-on-smp.patch
* lib-vsprintf-add-%pt-format-specifier.patch
* maintainers-assing-systemace-driver-to-xilinx.patch
* remove-non-existent-files-from-maintainerspatch-added-to-mm-tree.patch
* maintainers-linaro-mm-sig-is-moderated.patch
* maintainers-add-entry-for-kernel-selftest-framework.patch
* drivers-video-backlight-backlightc-remove-backlight-sysfs-uevent.patch
* list-include-linux-kernelh.patch
* lib-use-seq_open_private-instead-of-seq_open.patch
* mm-utilc-add-kstrimdup.patch
* lib-add-crc64-ecma-module.patch
* checkpatch-fix-spello.patch
* checkpatch-remove-debugging-message.patch
* checkpatch-update-allowed_asm_includes-macros-add-rebooth-and-timeh.patch
* checkpatch-enable-whitespace-checks-for-dts-files.patch
* init-kconfig-move-rcu_nocb_cpu-dependencies-to-choice.patch
* autofs4-allow-rcu-walk-to-walk-through-autofs4.patch
* autofs4-factor-should_expire-out-of-autofs4_expire_indirect.patch
* autofs4-make-autofs4_can_expire-idempotent.patch
* autofs4-avoid-taking-fs_lock-during-rcu-walk.patch
* autofs4-d_manage-should-return-eisdir-when-appropriate-in-rcu-walk-mode.patch
* autofs-the-documentation-i-wanted-to-read.patch
* rtc-use-c99-initializers-in-structures.patch
* rtc-s3c-define-s3c_rtc-structure-to-remove-global-variables.patch
* rtc-s3c-remove-warning-message-when-checking-coding-style-with-checkpatch-script.patch
* rtc-s3c-add-s3c_rtc_data-structure-to-use-variant-data-instead-of-s3c_cpu_type.patch
* rtc-s3c-add-support-for-rtc-of-exynos3250-soc.patch
* arm-dts-fix-wrong-compatible-string-of-exynos3250-rtc-dt-node.patch
* fs-befs-btreec-remove-typedef-befs_btree_node.patch
* hfsplus-fix-longname-handling.patch
* fs-proc-task_mmuc-dont-use-task-mm-in-m_start-and-show_map.patch
* fs-proc-task_mmuc-unify-simplify-do_maps_open-and-numa_maps_open.patch
* proc-introduce-proc_mem_open.patch
* fs-proc-task_mmuc-shift-mm_access-from-m_start-to-proc_maps_open.patch
* fs-proc-task_mmuc-shift-mm_access-from-m_start-to-proc_maps_open-checkpatch-fixes.patch
* fs-proc-task_mmuc-simplify-the-vma_stop-logic.patch
* fs-proc-task_mmuc-simplify-the-vma_stop-logic-checkpatch-fixes.patch
* fs-proc-task_mmuc-cleanup-the-tail_vma-horror-in-m_next.patch
* fs-proc-task_mmuc-shift-priv-task-=-null-from-m_start-to-m_stop.patch
* fs-proc-task_mmuc-kill-the-suboptimal-and-confusing-m-version-logic.patch
* fs-proc-task_mmuc-simplify-m_start-to-make-it-readable.patch
* fs-proc-task_mmuc-introduce-m_next_vma-helper.patch
* fs-proc-task_mmuc-reintroduce-m-version-logic.patch
* fs-proc-task_mmuc-update-m-version-in-the-main-loop-in-m_start.patch
* fs-proc-task_nommuc-change-maps_open-to-use-__seq_open_private.patch
* fs-proc-task_nommuc-shift-mm_access-from-m_start-to-proc_maps_open.patch
* fs-proc-task_nommuc-shift-mm_access-from-m_start-to-proc_maps_open-checkpatch-fixes.patch
* fs-proc-task_nommuc-dont-use-priv-task-mm.patch
* proc-maps-replace-proc_maps_private-pid-with-struct-inode-inode.patch
* proc-maps-make-vm_is_stack-logic-namespace-friendly.patch
* not-adding-modules-range-to-kcore-if-its-equal-to-vmcore-range.patch
* not-adding-modules-range-to-kcore-if-its-equal-to-vmcore-range-checkpatch-fixes.patch
* try-to-use-automatic-variable-in-kexec-purgatory-makefile.patch
* kgdb-timeout-if-secondary-cpus-ignore-the-roundup.patch
* x86-optimize-resource-lookups-for-ioremap.patch
* x86-optimize-resource-lookups-for-ioremap-fix.patch
* x86-use-optimized-ioresource-lookup-in-ioremap-function.patch
* init-resolve-shadow-warnings.patch
* init-resolve-shadow-warnings-checkpatch-fixes.patch
* ipc-always-handle-a-new-value-of-auto_msgmni.patch
* ipc-shm-kill-the-historical-wrong-mm-start_stack-check.patch
* ipc-use-__seq_open_private-instead-of-seq_open.patch
* build-trivia-scripts-headers_installsh.patch
linux-next.patch
* drivers-gpio-gpio-zevioc-fix-build.patch
* x86-vdso-fix-vdso2cs-special_pages-error-checking.patch
* include-linux-remove-strict_strto-definitions.patch
* lib-string_helpers-move-documentation-to-c-file.patch
* lib-string_helpers-refactoring-the-test-suite.patch
* lib-string_helpers-introduce-string_escape_mem.patch
* lib-vsprintf-add-%pe-format-specifier.patch
* lib-vsprintf-add-%pe-format-specifier-fix.patch
* wireless-libertas-print-esaped-string-via-%pe.patch
* wireless-ipw2x00-print-ssid-via-%pe.patch
* wireless-hostap-proc-print-properly-escaped-ssid.patch
* lib80211-remove-unused-print_ssid.patch
* staging-wlan-ng-use-%pehp-to-print-sn.patch
* staging-rtl8192e-use-%pen-to-escape-buffer.patch
* staging-rtl8192u-use-%pen-to-escape-buffer.patch
* watchdog-control-hard-lockup-detection-default.patch
* watchdog-control-hard-lockup-detection-default-fix.patch
* watchdog-control-hard-lockup-detection-default-fix-2.patch
* kvm-ensure-hard-lockup-detection-is-disabled-by-default.patch
* mm-replace-remap_file_pages-syscall-with-emulation.patch
* fat-add-i_disksize-to-represent-uninitialized-size-v4.patch
* fat-add-fat_fallocate-operation-v4.patch
* fat-zero-out-seek-range-on-_fat_get_block-v4.patch
* fat-fallback-to-buffered-write-in-case-of-fallocated-region-on-direct-io-v4.patch
* fat-permit-to-return-phy-block-number-by-fibmap-in-fallocated-region-v4.patch
* documentation-filesystems-vfattxt-update-the-limitation-for-fat-fallocate-v4.patch
* w1-call-put_device-if-device_register-fails.patch
* mm-add-strictlimit-knob-v2.patch
debugging-keep-track-of-page-owners.patch debugging-keep-track-of-page-owners-fix.patch page-owners-correct-page-order-when-to-free-page.patch make-sure-nobodys-leaking-resources.patch
journal_add_journal_head-debug.patch
journal_add_journal_head-debug-fix.patch releasing-resources-with-children.patch
make-frame_pointer-default=y.patch kernel-forkc-export-kernel_thread-to-modules.patch mutex-subsystem-synchro-test-module.patch
slab-leaks3-default-y.patch add-debugging-aid-for-memory-initialisation-problems.patch workaround-for-a-pci-restoring-bug.patch single_open-seq_release-leak-diagnostics.patch

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From: Randy Dunlap <[email protected]>

Add header file to fix kmemcheck.c build errors:

../mm/kmemcheck.c:70:7: error: dereferencing pointer to incomplete type ../mm/kmemcheck.c:83:15: error: dereferencing pointer to incomplete type ../mm/kmemcheck.c:95:8: error: dereferencing pointer to incomplete type ../mm/kmemcheck.c:95:21: error: dereferencing pointer to incomplete type

---
 mm/kmemcheck.c |    1 +
 1 file changed, 1 insertion(+)

Index: mmotm-2014-0829-1515/mm/kmemcheck.c
===================================================================
@@ -2,6 +2,7 @@
 #include <linux/mm_types.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
+#include <linux/slab_def.h>
 #include <linux/kmemcheck.h>
 
 void kmemcheck_alloc_shadow(struct page *page, int order, gfp_t flags, int node)

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2014-08-30 5:48 GMT+04:00 Randy Dunlap <[email protected]>:

Best regards,
Andrey Ryabinin

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Thanks. That makes sense. [testing] mm/kmemcheck.c still has a build error:

In file included from ../mm/kmemcheck.c:5:0:
../mm/slab.h: In function 'cache_from_obj':
../mm/slab.h:283:2: error: implicit declaration of function 'memcg_kmem_enabled' [-Werror=implicit-function-declaration]

Maybe Andrew should just drop that patch and its associated patches.

~Randy

Naughty header file. It uses something from <linux/memcontrol.h> without #including that header file...

Working patch is below.

From: Randy Dunlap <[email protected]>

Add header files to fix kmemcheck.c build errors:

../mm/kmemcheck.c:70:7: error: dereferencing pointer to incomplete type ../mm/kmemcheck.c:83:15: error: dereferencing pointer to incomplete type ../mm/kmemcheck.c:95:8: error: dereferencing pointer to incomplete type ../mm/kmemcheck.c:95:21: error: dereferencing pointer to incomplete type

../mm/slab.h: In function 'cache_from_obj':
../mm/slab.h:283:2: error: implicit declaration of function 'memcg_kmem_enabled' [-Werror=implicit-function-declaration]

---
 mm/kmemcheck.c |    1 +
 mm/slab.h      |    2 ++
 2 files changed, 3 insertions(+)

Index: mmotm-2014-0829-1515/mm/kmemcheck.c
===================================================================
@@ -2,6 +2,7 @@
 #include <linux/mm_types.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
+#include "slab.h"
 #include <linux/kmemcheck.h>
 
 void kmemcheck_alloc_shadow(struct page *page, int order, gfp_t flags, int node)

Index: mmotm-2014-0829-1515/mm/slab.h
===================================================================
@@ -268,6 +268,8 @@ static inline void memcg_uncharge_slab(s
 }
 #endif
 
+#include <linux/memcontrol.h>
+
 static inline struct kmem_cache *cache_from_obj(struct kmem_cache *s, void *x)
 {
 	struct kmem_cache *cachep;

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Hello.

Indeed...
Thanks for catching this.

With your patch, build also failed if CONFIG_MEMCG_KMEM=y. Right fix is something like below.

Thanks.

--------->8----------

index fd814fd..cab58bb 100644
@@ -2,6 +2,7 @@
 #include <linux/mm_types.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
+#include "slab.h"
 #include <linux/kmemcheck.h>
 
 void kmemcheck_alloc_shadow(struct page *page, int order, gfp_t flags, int node)

index 13845d0..963a3f8 100644
@@ -37,6 +37,8 @@ struct kmem_cache {
 #include <linux/slub_def.h>
 #endif
 
+#include <linux/memcontrol.h>
+
 /*
  * State of the slab allocator.
  *

The only difference is that memcg header is slightly move up in mm/slab.h. :)

Thanks.

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